    //
//  AppDelegate.swift
//  weiBoOfSwift
//
//  Created by simon on 15/12/5.
//  Copyright © 2015年 simon. All rights reserved.
//

import UIKit

let KAPPVERSION = "KAPPVERSION"
@UIApplicationMain

class AppDelegate: UIResponder, UIApplicationDelegate {
    
    var window: UIWindow?
    
    var notititication:NSObjectProtocol?

    func application(application: UIApplication, didFinishLaunchingWithOptions launchOptions: [NSObject: AnyObject]?) -> Bool {
            
        
//        注册通知接受消息
        notititication = NSNotificationCenter.defaultCenter().addObserverForName(KChangeRootController, object: nil, queue: nil) {[weak self] (notifity) -> Void in
//            接受通知改变跟控制器
            
            if notifity.object is DLogInViewController{
            
                 self!.window!.rootViewController = DXWelcomeVC()
            
            }else{
             self!.window!.rootViewController = DXTabBarController()
            }
            
        }

//        logPrint(DXUserAccountViewModel.shareUserAccount.isLogIn)
        window = UIWindow(frame:UIScreen.mainScreen().bounds)
        
        window?.rootViewController = DXUserAccountViewModel.shareUserAccount.isLogIn ? checkNewVersion() :DXTabBarController()
        
        
        window?.makeKeyAndVisible()
        return true
    }
//    检查版本是否需要更新
    private func checkNewVersion()->UIViewController {
        //        获取当前本号,并且保存到本地的偏好设置中
        let defaultsInfo = NSBundle.mainBundle().infoDictionary
        //     logPrint( defaultsInfo!["CFBundleVersion"])
        let currentVersion:String = defaultsInfo!["CFBundleVersion"] as! String

//        获取本地版本
        guard  let localVersion =
            NSUserDefaults.standardUserDefaults().objectForKey(KAPPVERSION) else{
                
             NSUserDefaults.standardUserDefaults().setObject(currentVersion, forKey: KAPPVERSION)
            
        return DXNewfeatureVC()
        }
//        比较版本号的大小
       let result = currentVersion.compare(localVersion as! String)
        if result == .OrderedDescending {
    NSUserDefaults.standardUserDefaults().setObject(currentVersion, forKey: KAPPVERSION)
        return DXNewfeatureVC()
        }else{
        
        return DXWelcomeVC()
        }
//            NSUserDefaults.standardUserDefaults()
//        如果当前版本号  > 本地版本号 == <=及!> !降序-->!.OrderedDescending 展示新特性页
//        否则 进入欢迎页
//        CFBundleVersion
 
    }
    
   
deinit{
 NSNotificationCenter.defaultCenter().removeObserver(notititication!)
    }
    
    func applicationWillResignActive(application: UIApplication) {
        // Sent when the application is about to move from active to inactive state. This can occur for certain types of temporary interruptions (such as an incoming phone call or SMS message) or when the user quits the application and it begins the transition to the background state.
        // Use this method to pause ongoing tasks, disable timers, and throttle down OpenGL ES frame rates. Games should use this method to pause the game.
   
    }

    func applicationDidEnterBackground(application: UIApplication) {
        // Use this method to release shared resources, save user data, invalidate timers, and store enough application state information to restore your application to its current state in case it is terminated later.
        // If your application supports background execution, this method is called instead of applicationWillTerminate: when the user quits.
    }

    func applicationWillEnterForeground(application: UIApplication) {
        // Called as part of the transition from the background to the inactive state; here you can undo many of the changes made on entering the background.
    }

    func applicationDidBecomeActive(application: UIApplication) {
        // Restart any tasks that were paused (or not yet started) while the application was inactive. If the application was previously in the background, optionally refresh the user interface.
    }

    func applicationWillTerminate(application: UIApplication) {
        // Called when the application is about to terminate. Save data if appropriate. See also applicationDidEnterBackground:.
    }


}

